The Spanish slave ship Josefa Maracayera which was headed for Cuba with 216 slaves, was captured by British cruisers off the coast of West Africa in 1822. A diagram of the ship, complete with cross section showing how closely the slaves were packed into the hold, was sent by Sir Charles MacCarthy, the Governor of Sierra Leone to the Committee of the Society of Friends for the promotion of the total abolition of the slave trade. The continued extent of the slave trade, despite treaties agreeing to abolish it, is described in the notes as "almost inconceivable".
No date of publication printed (estimated 1822). The diagram is included in the 'Anti-Slavery Album', held in the Cropper family papers, Merseyside Maritime Museum, Liverpool.
See also the diagram of the captured French slave ship La Vigilante, distributed by the same booksellers.